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Post Info TOPIC: Asteroid 2008 AO112


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RE: Asteroid 2008 AO112
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2008 AO112
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -5.50
Palermo Scale (cumulative) -4.59
Impact Probability (cumulative) 1.4e-07
Number of Potential Impacts 44
Vimpact 11.60 km/s
Vinfinity 3.21 km/s
H 20.2
Diameter 0.310 km
Mass 4.1e+10 kg
Energy 6.5e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
8 observations spanning 1.0097 days
(2008-Jan-11.08899 to 2008-Jan-12.098698)



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Orbital Elements at Epoch 2454477.5 (2008-Jan-12.0) TDB
Reference: JPL 1 (heliocentric ecliptic J2000)
Element Value Uncertainty (1-sigma) Units
e .3650064760284402 0.68571
a 1.388929011873299 1.5078 AU
q .8819609277957625 0.00525 AU
i 4.771294225194977 2.1917 deg
node 94.56989891761998 13.64 deg
peri 342.595714356839 17.762 deg
M 4.048676493111987 15.443 deg
tp 2454470.775978761637
(2008-Jan-05.27597877)
15.404 JED
period 597.8861610526126
1.64
973.57
2.665
d
yr
n .6021213124689148 0.98046 deg/d
Q 1.895897095950835 2.0581 AU

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The 130 metre wide asteroid 2008 AO112 will make a close pass (2.66 Lunar Distances) to the Earth-Moon system on the 7th July, 2010.

 Date__(UT)__HR:MN     R.A._(ICRF/J2000.0)_DEC  APmag 
2010-Jul-05 00:00 15 55 00.92 -18 18 03.2 22.59
2010-Jul-06 00:00 15 54 11.52 -18 19 16.9 22.62
2010-Jul-07 00:00 15 53 25.08 -18 20 36.8 22.65
2010-Jul-08 00:00 15 52 41.62 -18 22 03.0 22.68
2010-Jul-09 00:00 15 52 01.13 -18 23 35.6 22.71
2010-Jul-10 00:00 15 51 23.59 -18 25 14.6 22.74

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2008 AO112
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -4.62
Palermo Scale (cumulative) -4.30
Impact Probability (cumulative) 1.5e-07
Number of Potential Impacts 45
Vimpact 11.60 km/s
Vinfinity 3.22 km/s
H 20.2
Diameter 0.310 km
Mass 4.1e+10 kg
Energy 6.5e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
8 observations spanning 1.0097 days
(2008-Jan-11.08899 to 2008-Jan-12.098698)



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Orbital elements:
2008 AO112                                          PHA, Earth MOID = 0.0451 AU
Epoch 2007 Dec. 26.0 TT = JDT 2454460.5 MPC
M 354.17310 (2000.0) P Q
n 0.44202163 Peri. 346.08635 +0.20946936 -0.97372521
a 1.7067649 Node 91.76602 +0.90546062 +0.15866542
e 0.4820989 Incl. 5.12813 +0.36913908 +0.16335390
P 2.23 H 20.0 G 0.15
From 8 observations 2008 Jan. 11-12.

MPEC 2008 - D33

2008 AO112
Earth Impact Risk Summary
Torino Scale (maximum) 0
Palermo Scale (maximum) -2.89
Palermo Scale (cumulative) -2.88
Impact Probability (cumulative) 3.9e-07
Number of Potential Impacts 46
Vimpact 11.59 km/s
Vinfinity 3.20 km/s
H 20.2
Diameter 0.310 km
Mass 4.1e+10 kg
Energy 6.5e+02 MT
all above are mean values
weighted by impact probability
Analysis based on
8 observations spanning 1.0097 days
(2008-Jan-11.08899 to 2008-Jan-12.098698)

Source

The 310 metre wide asteroid 2008 AO112 was discovered on 12th January, 2008,  by the Mount Lemmon Survey.
The asteroid will make a close pass to the Earth on the 25th June, 2009.

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